Controller, storage medium, and information control method

Abstract

According to one embodiment, a controller includes a receiver, an acquisition module, and a writer. The receiver receives information. The acquisition module acquires redundant information for correcting an error in the information. The writer writes the information to a first memory bank from a start address to a predetermined address of the first memory bank, and writes the redundant information to a second memory bank from the predetermined address to an end address of the second memory bank.

1 . A controller comprising:
 a receiver configured to receive information;   a redundant information extraction module configured to extract redundant information for correcting an error in the information;   a writer configured to write the information to a first memory bank from a start address to a predetermined address of the first memory bank, and to write the redundant information to a second memory bank from the predetermined address to an end address of the second memory bank.   
     
     
         2 . The controller of  claim 1 , wherein the writer is configured to write the information and the redundant information upon the receipt of the information. 
     
     
         3 . The controller of  claim 1 , further comprising a location module configured to locate an address of the redundant information based on an address of the information. 
     
     
         4 . The controller of  claim 3 , wherein the writer is configured to assign digits of a first logical address of the information to the start address to the predetermined address of a row address of a storage module, a memory bank, and a column address, respectively, and to write the information to a storage area located by the row address, the memory bank, and the column address. 
     
     
         5 . The controller of  claim 4 , wherein the location module is configured to set an inverted value of a digit of the first logical address of the memory bank as a digit of the second logical address of the memory bank. 
     
     
         6 . A storage device comprising:
 a storage medium comprising a first memory bank and a second memory bank, the first memory bank configured to store information from a start address to a predetermined address, and the second memory bank configured to store redundant information for correcting an error in the information from the predetermined address to an end address; and   a controller configured to control the storage medium.   
     
     
         7 . An information control method comprising:
 receiving information;   extracting redundant information for correcting an error in the information;   writing the information to a first memory bank from a start address to a predetermined address of the first memory bank, and writing the redundant information to a second memory bank from the predetermined address to an end address of the second memory bank.